Oats (Avena? Sativa) is a gramineous plant. There are mainly two kinds, one is naked oats and the other is skin oats. ? Oats are called naked oats in China, commonly known as oil wheat, jade wheat, brome wheat and wild wheat. It is a food with low sugar, high nutrition and high energy. Oats are cold-tolerant, drought-tolerant, adaptable to soil and self-propagating. Oats are rich in dietary fiber, which can promote gastrointestinal peristalsis, facilitate defecation, have low calories, low glycemic index, and reduce blood fat and blood sugar. Oats are also one of the advanced supplements and indispensable dry food in poor areas. ? Oats belong to minor grains, and there are mainly two kinds, one is skin oats and the other is naked oats. Naked oats have no shells when cooked, commonly known as oil wheat, which is naked oats, and there are many in China. Peeled oats have shells when they are ripe, such as imported Australian oats. ? In China, oat (naked oat) is one of the main alpine crops, and it is a first-class miscellaneous grain. Concentrated in Bashang and other alpine regions, it belongs to Gramineae and Panicum. Its growth period is roughly the same as that of wheat, but it has strong adaptability, cold tolerance, drought tolerance and sunshine. ? China is one of the origins of oats. Wuchuan County, Inner Mongolia is one of the cradles of oats in the world, and is known as the "hometown of oats" in China. The oatmeal produced by Yangufang comes from Wuchuan County, Inner Mongolia. It has been recorded in ancient books. It is called Mi in Erya Cao Shi, Pang in Historical Records and Biography of Sima Xiangru, and Bromus in Tang Herbal Medicine. Compendium of Materia Medica says: "Oats are mostly wild, so they are named oats because birds eat them."

Brown rice generally refers to brown rice.

Brown rice is the caryopsis of rice after rice husk is removed from the outer protective layer. The rice grains with complete inner protective layer (pericarp, seed coat and nucellar layer) have rough taste and dense texture because of more crude fiber and bran wax in the inner protective layer, which requires time to cook, but its slimming effect is remarkable. Compared with ordinary refined white rice, brown rice is rich in vitamins, minerals and dietary fiber, and is regarded as green and healthy food.